Working at height, lashing and access to container tops
This domain tests fall prevention in lashing work, the highest-risk routine task in a terminal. Questions typically ask for the control that should have been in place, or the correct access method.
Apply the hierarchy
- Eliminate: use semi-automatic twistlocks, shore-based lashing frames, or lashing platforms mounted on the crane so the worker never stands on a container.
- Prevent: guardrails, gates, harness with double lanyard on a rated anchorage, and a platform with a safe means of access.
- Mitigate: rescue arrangements, first aid, and a plan for suspension trauma.
Harness use
Use a full-body harness with double lanyards so one attachment remains connected while moving between anchor points. The anchorage must be rated and identified, never an unrated corner casting or a lashing rod. Keep the lanyard short to limit free-fall distance and avoid working above the anchor point. Inspect harnesses before use and record inspections; remove damaged equipment from service.
Access to container tops
Access by ladder, caged ladder, stairs or an approved platform with guardrails. Do not climb the corner castings, do not jump between containers, and do not walk on container roofs unless a designed walkway with edge protection exists. Three points of contact on ladders; tools carried in bags or hoisted, not in hands.
Lashing practice
Lash from the platform or from ground level using extension rods where provided. Agree an exclusion zone with the crane operator, confirm the crane is parked and the spreader clear, and never lash a box that is still suspended or being landed. Stop in high wind, heavy rain or when surfaces are wet or icy.
Worked example
A gang must lash the top tier of a five-high stack. Available controls: lashing rods used from ground level, a crane-mounted lashing platform, or climbing the stack. Climbing is acceptable only if a platform or ladder access exists, a harness with double lanyard is anchored to a rated point above, a rescue plan is in place and weather is within limits. Otherwise the lash is deferred until the stack is lowered.
Traps that cost marks
- Choosing a harness as the first control instead of removing the need to climb.
- Anchoring to a container corner casting or lashing rod.
- Forgetting the rescue plan for a suspended worker.